DOCSP-48592 Security Landing Page (mongodb#1064)

* DOCSP-48592 Security Landing Page

* remove sample app

* change title

Author: lindseymoore

source/security.txt

@@ -1,8 +1,8 @@
 .. _node-security:
 
-=========
-Security
-=========
+================
+Secure Your Data
+================
 
 .. contents:: On this page
    :local:
@@ -30,5 +30,10 @@ Security
 Overview
 --------
 
-MongoDB supports multiple mechanisms that you can use to authenticate your application.
-This page contains code examples that show each of these mechanisms.
+Learn how to set up security and authentication for your application 
+in the following sections:
+
+- :ref:`Authentication <node-authentication>`
+- :ref:`In-Use Encryption <node-fle>`
+- :ref:`TLS Security Protocol <node-tls>`
+- :ref:`SOCKS Proxy <node-socks>`

source/security/authentication/scram.txt

@@ -86,6 +86,8 @@ To learn more about the SCRAM version that MongoDB supports,
 see the :manual:`SCRAM </core/security-scram/>` section of the {+mdb-server+}
 manual.
 
+.. _node-scram-sha-256:
+
 SCRAM-SHA-256
 -------------
 
@@ -109,8 +111,10 @@ following sample code.
 .. literalinclude:: /code-snippets/authentication/sha256.js
    :language: javascript
 
-``SCRAM-SHA-1``
----------------
+.. _node-scram-sha-1:
+
+SCRAM-SHA-1
+-----------
 
 .. note::
    ``SCRAM-SHA-1`` is the default authentication method for MongoDB versions